Duplex seam for sewed articles



HERBERTCORRALL, OF HELENSBURGH, SCOTLAND, ASSIGNOR T() THE SNGER I/LitTLVJ` 0F ELIZABETH, NEW JERSEY, A CORPRAQTON OF NEW FACTURING- CMEANY, JERSEY.

TS ATENT f'ilfi.,

DPLEX SRAM FOB SEJVED ARTICLES.

Application ined August e, ieei. semi No. 490,316.

(en /imno UNDER rmi raovisic'ns or Aer or Manen a wel, [i1 sriir. L., 1313.)

To all whom t mamy concern Be it known that I, HinnsnnrCommim, a

subject of the Kingof the United Kingdom` Nov. 2e, 1914, Patent Nefeiaioo, datei Nov. 29, 1.91/1, and filed July 8, 1920; Bel` gium, filed Jan. 5, 1920; France, `filed Dec. 16, 1919, Patent No. 507,475, dated Dec. 16, 1919; Italy, filed Dec. 26, 1919, Patent No. 518/27, dated Dec. 31, 1919; Poland, filed April 7, 1920; Spain, filed Dec. 31, 1919,

Patent No. 72,031, dated May G, 1920;`

Sweden, filed Dec. 24, 1919; and Switzerland, filed Jan. 26, 1920, Patent No. 87,186, dated J an. 26, 1920), of which the following;i is a specification.

rlliis invention relates to a duplex seam for uniting the abutted edges of fabric sec` tions and aims at the production of a fiat ornamental seam suitable for hosiery, for example.

The duplex seam according to the invention comprises two separate stitch-formations one of which is superposed upon the other and each of which embraces the abutted edges of the fabric sections. rihe irst stitch-formation may be in the form of a retaining` seam constituted by two` needle-threads which are formed into parallel rows of needle-loops and serve to bind to one side of the abutted fabric sections at least one sinuously laid covering; or orna mental thread extending from row to row and each of which needlesthread loops is enchained in its own row on the other side of the fabric sections with a looper crossthread extending from row to row. The superposed seam overlies the first seain along a relatively narrow zone embracing` the abutted edges of fabric and is preferably niade narrower than and disposed within the borders of the lirst seam. `The second seam preferably includes two needle-threads which are formed into rows of needle-loops extending parallel to the rows of needle loops of the first mentioned seam. The

needle-loops of the superposed seam are each `enchained in its own row' on the second` mentioned side of the fabric with a looper cross-thread extending from rowto row;

The superposed seam serves to bind to the fabric the covering thread and thelooper thread of 'the first formed sea-m and coop` crates with the first seam to doublyv cover spaced apart a distance representing, in` the particular embodiment of the invention illustrated, the `total ywidth of the seam. The spaced pairs of opposed needle loops extending' through the fabric sections a, and Z1 on opposite sides of the `abutted edges are joined and anchored on' the lower face of the fabric by 'a lower or looper cross-- thread c extending across the edges to be joined. On the upper side of the fabric sections a covering thread or cross-thread 7 secured by means of the needle-threads c and d.

g and it represent needle-threads, preferably relatively closely spaced, the spaced pairs' of needle loops of which are joined and anchored by a looper thread j which crosses and recrosses the line of division be,- tween the fabric sections. i

The threads (/,t andj serve to maintain the threads in close contactrwith the fabric.

It will be seen that the separate stitch-v formations are superposed along a narrow zone which is disposed centrally of the duplex seam and embraces the abutted edges of fabric, which edges are thus doubly covered,

l claim 1. A duplex seam for sewed articles com` prising two fabric sections, a first seam for joining' the abutted edges of said fabric sections. said first seam including' spaced pairs of opposed needle loops, a looper cross thread joining and anchoringsaid pairs of opposed needle loops on one face of the fabric, a cross thread joining the opposed pairs of needle loops on the other face of the fabric, and a superposed seam disposed within the bordersofthe first seam and. including needle and looper threads at least one ofy which crosses and recrosses the line of division between the fabric sections.

2. A duplex seam forl sewed articles comprising two fabric sections, a first seam for joining the abutted edges of said fabric sections, said first seam including spaced pairs of opposed needle loops, a looper cross thread joining andanchoring said pairs. of opposed needle loops on one face of the fabric, a: cross threadkjoining theopposed pairs of needle loops onlthel otherfacel ofl the fabric, and a superposedseam disposed within the borders, ofthe first seamand including spacedpairs of opposed needle loops located on opposite sides of said meeting edges, and a looper cross thread joining and anchoring said opposed needle loopsonone face of the fabric. l 3. A duplex seam for sewed articles `cornprising two fabric sections havinga pair-,of

separately formedseams for1 covering the proximate edges of said fabric sections, each of said seainscomprising two needle-threads formed at intervals into loops passing through the respective fabric 4sections and a looper cross thread concatenatediwith said needle-loops and extending back` and forth4 across said edges, one ofsaiddoopen crosst threads overlying and servingto. bind down' the other looper cross thread.

4. A duplex seam for sewed articlescoin prising fabric sectionsy having their. edges.`

tobe joinedarranged in parallel relation, a

first seam includingspaced pairs of opposed needle-loops, al looper crossthread joining and anchoring said pairs of opposed needleloopson the kunder face of the fabric, and a covering thread joining the opposed pairs of needle-loops. on the upper face. of the fabric,- and a second seam formed overthe first seam and including spaced rpairs of opposed needle-loops and a second loopercrossf thread joining and anchoring saidfpairsof` needle-loops on the under face ofthe fab.

ric, both of said loopertthreads` extending across the edgesof material to be '.joined.

5. A seam for sewedarticles comprising fabric sections having .their edges abutted,

a series of stitches connecting said sections and" comprising spaced rows of opposed needle thread loops respectively extending through the fabric sections on opposite sides ofthe abutted edges, a looper' thread concatenated with said needle thread loops and formin'ga line of single chain loops on one side of themeeting edges of the fabric sections, and a separate series of stitches connecting and anchoring said fabric sections against being separated by a strain transverse of the meeting edges of the fabric sections, said separate series of stitches including spaced rows of opposed needle thread; loops andja looper thread, concatenated therewith, said last-mentioned. looper thread being formed into a series of loops respectively concatenated with each pair of the last-mentioned needle-thread-loops after passing through the .needle thread loops ofy a previous pair and extending over and covering the first-mentioned looper thread.

6., An ornamentaly seam for uniting two fabrics comprising two needle threads disposed in parallel stitchrows, a lower thread extending from stitch-,row to stitch-.row and concatenated on the. underl side of theat'abrics with both,needle threads, each in its name to.` this specificationinlthe presence.

of two subscribing witnesses.-

HERBERT CORRALL.

Witnesses:

HENRY, MASON, WALLACE CRANsroN FATRWEATHER.. 

